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Cubist Systematic Strategies’s Flex FLEX Stock Holding History

Cubist Systematic Strategies’s Portfolio FLEX Stock Details FLEX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		$1.01M Sell
17,500
-76,300
-81% -$4.05M ﹤0.01% 1945
2025
Q2 		$4.68M Buy
93,800
+9,200
+11% +$358K 0.02% 1053
2025
Q1 		$2.8M Buy
+84,600
New +$3.31M 0.02% 1224

Other funds holding FLEX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
LAM
Lyrical Asset Management New York $6.56B AUM 20.06% 1-Year Est. Return

Cubist Systematic Strategies's FLEX Position: Q3 2025 in Review

Cubist Systematic Strategies opened a new position in Flex (FLEX) in Q3 2025: 200,606 shares worth $11.6M. The stake represents 0.06% of the portfolio and ranks #486 among its holdings. This is a return to the name: Cubist Systematic Strategies previously reported a position in FLEX as recently as Q2 2024.

Cubist Systematic Strategies first reported a position in FLEX in Q2 2014 and has held it in 37 quarters since. The position peaked at $14.5M in Q1 2023. 698 funds tracked by Wall St. Rank hold FLEX as of Q3 2025.

  • Cubist Systematic Strategies held 200,606 shares of Flex worth $11.6M as of Q3 2025.
  • Flex was a new Cubist Systematic Strategies position in Q3 2025.
  • Flex made up 0.06% of Cubist Systematic Strategies's portfolio in Q3 2025, its #486 holding.
  • Cubist Systematic Strategies first reported a position in Flex in Q2 2014 and has held it in 37 quarters since.
  • Cubist Systematic Strategies's Flex position peaked at $14.5M in Q1 2023.
  • 698 funds tracked by Wall St. Rank held Flex as of Q3 2025.

Based on Cubist Systematic Strategies's 13F filing for Q3 2025, filed 14 Nov 2025.